iUniker Raspberry Pi Power Supply with Switch 15W vs Kingwin Digital Power Supply Tester with LCD Screen
Updated August 2026 — iUniker Raspberry Pi Power Supply with Switch 15W wins on output, Kingwin Digital Power Supply Tester with LCD Screen wins on price and size.
The iUniker Raspberry Pi Power Supply is an affordable and efficient choice for Raspberry Pi users, while the Kingwin tester offers advanced diagnostic capabilities for a higher price.
Why iUniker Raspberry Pi Power Supply with Switch 15W is better
Price
iUniker is significantly cheaper at $8.99.
Simplicity
iUniker is straightforward to use with Raspberry Pi.
Compatibility
iUniker is specifically designed for Raspberry Pi models.
Why Kingwin Digital Power Supply Tester with LCD Screen is better
Functionality
Kingwin offers comprehensive power supply testing.
Display
Kingwin features a digital LCD for real-time monitoring.
Durability
Kingwin is made from high-quality aluminum for long-term use.
Overall score
Specifications
| Spec | iUniker Raspberry Pi Power Supply with Switch 15W | Kingwin Digital Power Supply Tester with LCD Screen |
|---|---|---|
| Type | Power Supply | Tester |
| Voltage | 5V | N/A |
| Compatibility | Raspberry Pi | ATX, ITX |
| Display | None | LCD |
| Material | Plastic | Aluminum |
Dimension comparison
Overview of the Products
The iUniker Raspberry Pi Power Supply is priced at $8.99, while the Kingwin Digital Power Supply Tester costs $16.99. This makes the Kingwin about 89% more expensive than the iUniker. While both products serve different purposes, their prices reflect their unique functionalities and target audiences. The iUniker power supply is specifically designed for Raspberry Pi models, while the Kingwin tester is a versatile tool for diagnosing various power supply units.
Design and Build Quality
The iUniker Raspberry Pi Power Supply features a simple yet effective design, complete with an easy ON/OFF switch and a micro USB plug. Its UL listing ensures safety and compliance with standards. On the other hand, the Kingwin Digital Power Supply Tester is made from durable aluminum, providing a robust construction that can withstand frequent use. Its compact design makes it easy to carry, appealing to both professionals and enthusiasts alike.
Functionality
The iUniker Raspberry Pi Power Supply is designed specifically for Raspberry Pi 2, Pi 3, and Pi 3 B+, providing a regulated output of 5V DC at 3A. This makes it ideal for powering these devices efficiently. In contrast, the Kingwin tester offers comprehensive power supply testing for ATX, ITX, IDE, HDD, SATA, and BTX units. Its digital LCD display gives real-time voltage readouts, allowing users to monitor and diagnose issues quickly.
Ease of Use
The iUniker power supply is straightforward to use, requiring just a simple connection to the Raspberry Pi. The power switch adds convenience for users who want to turn the device on or off without unplugging it. The Kingwin tester also prides itself on being user-friendly, featuring a plug-and-play design that doesn’t require advanced technical knowledge. This accessibility makes both products appealing to different user bases.
Target Audience
The iUniker Raspberry Pi Power Supply targets hobbyists and developers working with Raspberry Pi devices, emphasizing compatibility with specific models. Its price point of $8.99 makes it an attractive choice for those who need a reliable power source without overspending. Conversely, the Kingwin tester is aimed at PC builders and technicians who require a reliable tool for diagnosing power supply issues. At $16.99, it serves a broader market, appealing to anyone who works with various power supply types.
Safety Features
The iUniker power supply is UL listed, which signifies it meets safety standards necessary for electronic devices. This is crucial for users concerned about the reliability of their power source. The Kingwin tester also includes built-in safety features that protect against short circuits and overvoltage, ensuring a safe testing environment. This attention to safety in both products adds value, especially for those using them in critical applications.
Customer Feedback and Market Position
While specific sales ranks were not provided for either product, the iUniker power supply’s lower price may make it more accessible to a larger audience. The Kingwin tester, with its more advanced functionalities, may appeal to a smaller but potentially more dedicated user base. Both products have their niches; the iUniker is perfect for Raspberry Pi users, while the Kingwin is essential for anyone needing to diagnose power supplies.
Which should you buy?
Choosing between the iUniker Raspberry Pi Power Supply and the Kingwin Digital Power Supply Tester ultimately depends on your specific needs. If you are looking for an efficient and affordable power solution for your Raspberry Pi devices, the iUniker at $8.99 is a clear winner. However, if you require a versatile diagnostic tool for various power supplies, the Kingwin tester’s features justify its higher price of $16.99. Each product excels in its domain, making your decision hinge on whether you need a power supply or a diagnostic tool.

